Implement chrome.extension.connectExternal and fix various API inconsistencies.

chrome/renderer/mock_render_thread.cc

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/renderer/mock_render_thread.h"
 
 #include "chrome/common/render_messages.h"
 #include "ipc/ipc_message_utils.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ skipping 79 matching lines @@
 
 // The Widget expects to be returned valid route_id.
 void MockRenderThread::OnMsgCreateWidget(int opener_id,
                                          bool activatable,
                                          int* route_id) {
   opener_id_ = opener_id;
   *route_id = routing_id_;
 }
 
 void MockRenderThread::OnMsgOpenChannelToExtension(
-    int routing_id, const std::string& extension_id,
+    int routing_id, const std::string& source_extension_id,
+    const std::string& target_extension_id,
     const std::string& channel_name, int* port_id) {
   *port_id = 0;
 }
 
 void MockRenderThread::OnDuplicateSection(
     base::SharedMemoryHandle renderer_handle,
     base::SharedMemoryHandle* browser_handle) {
   // We don't have to duplicate the input handles since RenderViewTest does not
   // separate a browser process from a renderer process.
   *browser_handle = renderer_handle;
@@ skipping 18 matching lines @@
 void MockRenderThread::OnDidGetPrintedPagesCount(int cookie, int number_pages) {
   if (printer_.get())
     printer_->SetPrintedPagesCount(cookie, number_pages);
 }
 
 void MockRenderThread::OnDidPrintPage(
     const ViewHostMsg_DidPrintPage_Params& params) {
   if (printer_.get())
     printer_->PrintPage(params);
 }